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The new clang 23 has a new warning about set-but-unused static (internal-linkage) global variables: -Wunused-but-set-global, which is activated in PostgreSQL builds via -Wall. This triggers a few warnings in PostgreSQL code. This commit removes several such variables that were either never used or whose last use was removed some time ago. For pq_init_crypto_lib, we apply the same #ifdef HAVE_CRYPTO_LOCK that the other uses of the variable already have, so that the variable is either fully used or fully nonexistent, depending on the configuration, not half-way. Reviewed-by: Andreas Karlsson <andreas@proxel.se> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/eb013f9d-2247-444e-8815-9d17b4ce78e7%40eisentraut.org
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.